Solve by factoring and using the principle of zero products.4x2 = 16
A. 2
B. 2, - 2
C. 1, - 1
D. 1
Answer: B
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At what points is the given function continuous?f(x, y) = tan (x + y)
A. All (x, y) ? (0, 0)
B. All (x, y) ? 
C. All (x, y)
D. All (x, y) such that x + y ? 
, where n is an integer
Find the divergence of the field F.F = 
A. 
B. 
C. 
D. 0
Solve.Suppose that an estimated 8750 gigatons of mass of a certain ice sheet has been lost since the beginning of the 20th century. Given that a gigaton is 1012 metric tons, and a metric ton is 1000 kilograms, convert this loss to U.S. customary tons. Express your answer in scientific notation to three decimal places.
A. 8.750 × 1015 tons B. 8.750 × 1012 tons C. 9.645 × 1012 tons D. 9.645 × 1015 tons
Use a calculator to solve the equation on the interval [0, 2?). Round to the nearest hundredth of a radian.cos 3x = cos x
A. 1.57, 4.71 B. 0, 0.79, 2.36, 3.14, 3.93, 5.50 C. 0, 1.57, 3.14, 4.71 D. 0.79, 1.57, 2.36, 3.93, 4.71, 5.50